Research Article

New Predictive Equations for Resting Energy Expenditure in Normal to Overweight and Obese Population

Table 3

Accuracy of the resting metabolic rate measured by indirect calorimetry and that calculated by some predictive equations.

ToolsRMR (kcal/day)Bias (kcal)Percent of bias (%)Underestimation (%)Overestimation (%)Accurate estimation (%)r

Men (n = 208)
Quark RMR1999.1 ± 360.1
HB19191922.3 ± 288.576.8 ± 251.24.3 ± 13.426.917.855.30.721
HB19841906.2 ± 280.092.8 ± 249.95.3 ± 13.430.314.954.80.722
Bernstein1508.1 ± 246.8491.0 ± 250.033.5 ± 17.690.409.60.720
Owen1747.6 ± 204.9251.5 ± 257.514.3 ± 14.659.13.837.00.714
Mifflin1799.6 ± 215.5199.5 ± 252.811.0 ± 14.050.55.344.20.723
Schofield (Wt)1973.6 ± 302.124.7 ± 256.31.9 ± 13.321.622.655.80.714
Schofield (Wt, Ht)1970.9 ± 302.328.2 ± 256.31.8 ± 13.321.121.656.30.714
WHO (Wt)1981.9 ± 307.417.18 ± 257.21.3 ± 13.220.223.656.30.714
WHO (Wt, Ht)1982.3 ± 309.016.8 ± 257.71.3 ± 13.320.723.156.30.713

Women (n = 215)
Quark RMR1508.6 ± 241.3
HB19191470.9 ± 134.337.7 ± 178.12.4 ± 11.920.518.161.40.687
HB19841479.5 ± 132.929.2 ± 178.51.8 ± 11.819.518.162.30.687
Bernstein1207.3 ± 102.1301.3 ± 186.924.7 ± 14.782.30.517.20.684
Owen1296.8 ± 103.7211.9 ± 189.216.1 ± 14.060.91.437.70.663
Mifflin1372.9 ± 150.8135.7 ± 177.49.9 ± 12.741.95.652.60.680
Schofield (Wt)1522.2 ± 214.0−13.6 ± 188.5−0.4 ± 12.317.227.055.80.663
Schofield (Wt, Ht)1484.2 ± 201.724.5 ± 184.52.1 ± 12.422.818.658.60.666
WHO (Wt)1523.3 ± 212.3−14.7 ± 188.0−0.5 ± 12.317.227.455.30.663
WHO (Wt, Ht)1492.6 ± 198.316.0 ± 183.81.4 ± 12.320.520.958.60.666

Bias = RMR measured by Quark RMR-REE predicted by equations. Percent of bias = ((RMR measured by Quark RMR-REE predicted by equations) × 100)/REE predicted by equations. Accurate estimation = percentage of all subjects whose REE was within 90% to 110% of measured RMR by Quark RMR. Underestimation = percentage of all subjects whose REE was less than 90% of measured RMR by Quark RMR. Overestimation = percentage of all subjects whose REE was more than 110% of measured RMR by Quark RMR. r = Pearson’s correlation coefficient between RMR measured by Quark RMR and REE predicted by equations. significant difference vs the measured RMR (Quark RMR) (P ≤ 0.05).